Li Xue, the seventh princess in ancient times, refused to marry the prince and was hunted down. After falling off a cliff, she transformed into Gu Xue, the unpopular illegitimate daughter of the modern wealthy Gu family. The original owner was cowardly and was bullied arbitrarily by his stepmother Liu Mei and stepsister Gu Yuwei. He was also engaged to Shen Chen, the illegitimate son of the city's richest man, for business interests. Because Shen Chen was an illegitimate child, he was not taken seriously at home and became a romantic playboy, extremely disgusted with the weakness of his original owner. After Li Xue possessed Gu Xue, she relied on the ancient princess's arrogant and venomous tongue and palace fighting wisdom to use her "mouth cannon" as a weapon to attack her stepmother, tear her stepsisters apart, and punish the servants. She went from being a transparent person to someone the whole family dared not mess with "ancestor"; her cheerfulness and confidence impressed Shen Chen, and the two gradually fell in love with each other from being enemies who disliked each other; Li Xue also drove Shen Chen to be positive and helped him gain the attention of his father, Shen Dafu, and became his right-hand man in business; at the same time, Li Xue transformed the ideas of palace fighting into entrepreneurial inspiration, opened a palace pastry online store and a house fighting mediation studio, made a lot of money, and finally got rid of the shackles of the wealthy family, joined hands with Shen Chen, lived the way he wanted, and realized The original intention of "no involvement, no struggle, stability and happiness".